docstr: Marks a specific tag as a favorite for the current user.
  This function will find the tag by the provided id,
  create a new UserFavoriteTag object that represents
  the user's preference, add that object to the database
  session, and commit the session. It uses the currently
  authenticated user from the global 'g' object.
  Args:
      tag_id: The id of the tag that is to be marked as
              favorite.
  Raises:
      Any exceptions raised by the find_by_id function,
      the UserFavoriteTag constructor, or the database session's
      add and commit methods will propagate up to the caller.
  Returns:
      None.
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code: def favorite_tag_by_id_for_current_user(  # pylint: disable=invalid-name
      tag_id: int,
  ) -> None:
      """
      Marks a specific tag as a favorite for the current user.
      This function will find the tag by the provided id,
      create a new UserFavoriteTag object that represents
      the user's preference, add that object to the database
      session, and commit the session. It uses the currently
      authenticated user from the global 'g' object.
      Args:
          tag_id: The id of the tag that is to be marked as
                  favorite.
      Raises:
          Any exceptions raised by the find_by_id function,
          the UserFavoriteTag constructor, or the database session's
          add and commit methods will propagate up to the caller.
      Returns:
          None.
      """
      tag = TagDAO.find_by_id(tag_id)
      user = g.user
  
      if not user:
          raise MissingUserContextException(
              message="User doesn't exist"
          )
      if not tag:
          raise TagNotFoundError()
  
      tag.users_favorited.append(user)
      db.session.commit()
  
imports: import logging
  from operator import and_
  from typing import Any, Optional
  from flask import g
  from sqlalchemy.exc import SQLAlchemyError
  from superset.commands.tag.exceptions import TagNotFoundError
  from superset.commands.tag.utils import to_object_type
  from superset.daos.base import BaseDAO
  from superset.daos.exceptions import DAODeleteFailedError
  from superset.exceptions import MissingUserContextException
  from superset.extensions import db
  from superset.models.dashboard import Dashboard
  from superset.models.slice import Slice
  from superset.models.sql_lab import SavedQuery
  from superset.tags.models import get_tag, ObjectType, Tag, TaggedObject, TagType, user_favorite_tag_table
  from superset.utils.core import get_user_id
label_desc: Use image node_id 9 for calling the TagDAO obj's underlying member method code with example usage: obj.favorite_tag_by_id_for_current_user(tag_id) without return types